package com.colors.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * @author colors
 * @date 2021/1/5 15:29
 */
@Service
public class PaymentService {
    /**
     * 正常访问
     *
     * @param id
     * @return
     */
    public String paymentInfo_ok(Integer id) {
        return "线程池：" + Thread.currentThread().getName() + "  paymentInfo_ok,id:" + id + "\t" + "😄 O(∩_∩)O";
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_timeoutHandler", commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "5000")})
    public String paymentInfo_timeout(Integer id) {
        int number = 3;
        try {
            TimeUnit.SECONDS.sleep(number);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池：" + Thread.currentThread().getName() + "  paymentInfo_timeout,id:" + id + "\t" + "耗时:" + number + "s";
    }

    public String paymentInfo_timeoutHandler(Integer id) {
        return "线程池：" + Thread.currentThread().getName() + "  8001服务连接超时，请稍后再试" + "\t" + "/(ㄒoㄒ)/~~";
    }

    //服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback", commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"),// 是否开启熔断器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"),// 请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"),// 时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60"),// 失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id) {

        if (id < 0) {
            throw new RuntimeException("****id不能为负");
        }
        String serialNumber = IdUtil.simpleUUID();
        return Thread.currentThread().getName() + "\t" + "调用成功，流水号：" + serialNumber;
    }

    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id) {

        return "id不能为负，请稍后再试~/(ㄒoㄒ)/~~，id:" + id;
    }

}
